Wet Bulb Temperature Sensor 4 20ma

At 100 relative humidity the wet bulb temperature is equal to the air temperature dry bulb temperature.

Wet bulb temperature sensor 4 20ma.

Snowmaking snow production needs low temperatures and when the humidity decreases the temperature rises. The 2 wire hms82 transmitter measures relative humidity and temperature in outside air osa. 2 channel temperature pt1000 resolution 0 01 c uncertainty 0 1 c. The hmt120 is delivered with a weather shield for the transmitter unit to protect it from the outdoor elements.

Wet and dry type humidity sensor pola sxps for use with pola hp models hp14 hp27 hp46 hp57. At lower humidity the wet bulb temperature is lower than dry bulb temperature because of evaporative cooling. The wet bulb temperature wbt is the temperature read by a thermometer covered in water soaked cloth wet bulb thermometer over which air is passed. 2 binary inputs isolated optionally.

Combined humidity and temperature sensors with twin 4 20ma output. Two linear outputs provide a 4 20 ma signal for wet bulb and a 4 20 ma signal for dry bulb. Electronic humidity sensors such as hr03 xh20p hmd42 and hmw82 for all humidity controls. The vaisala humicap humidity and temperature transmitters hmt120 and hmt130 incorporate the vaisala humicap technology with humidity sensor humicap 180r.

The wet bulb temperature might not be a widely known measure but it has some valuable functions. Two options are available. Wet dry dual pt100 thermometer module with 4 to 20 ma outputs for high accuracy relative humidity measurement or humidity measurement in high temperature or constantly wet environments. Using a capacitive rh sensor and an rtd temperature sensor the unit s microprocessor computes the dew point wet bulb or enthalpy.

2 wire loop powered or 3 wire voltage output configurations. 2 digital s300 inputs for external sensors isolated output. Wet and dry bulb temperature relative humidity resolution 0 1 uncertainty 1. Construction different materials react differently to different humidities so this temperature is needed when designing a building in different climates.

4 channel 0 10v or 4 20ma analog input. Model wb4 wet bulb transmitters are rugged compact and ideally suited for monitoring wet bulb in building automation and process applications. Hms82 outdoor humidity dew point wet bulb enthalpy and temperature sensor for hvac and cooling towers current loop 3 accuracy. Hmt120 wet bulb dry bulb transmitter for cooling towers current loop.

Kele is the leading supplier of building automation products. Using a capacitive rh sensor and an rtd temperature sensor the unit s microprocessor computes the wet bulb. Two linear outputs provide a 4 20ma signal for dew point wet bulb or enthalpy and a 4 20 ma signal for dry bulb. Wall mounted humidity sensors hmw82.